“I want to lament on behalf of the Portuguese government and personally the brutal killing of Jo Cox MP and add our solidarity to the British parliament and the British people and to the Labour party she was a member of”, he to,d Lusa News Agency.

“It is a completely lamentable and reprehensible act, since democratic debate should be peaceful and the MP was exercising her right and doing her duty to defend her ideas and inform her constituents”, he added.

The British Labour MP Jo Cox, (41), died after being shot and stabbed is a street in the town of Birstall, northern England, by a 52-year-old man who has been arrested.

Ms Cox’s death led to the suspension of all campaign events that were scheduled for Friday and the Conservative prime minister David Cameron has cancelled a rally in Gibraltar to defend staying in the EU and avoid the 'Brexit'.